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Solutions question

2022 · 27 Jun · Shift 1 · Q1
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  5. /2022 · 27 Jun · Shift 1 · Q1

Solutions question

2022 · 27 Jun · Shift 1 · Q1

JEE MainChemistrySolutionsMCQ+4 / −1
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : At 10 ∘^\circ∘ C, the density of a 5 M solution of KCl [atomic masses of K & Cl are 39 & 35.5 g mol −-− 1 respectively], is 'x' g ml −-− 1. The solution is cooled to −-− 21 ∘^\circ∘ C. The molality of the solution will remain unchanged. Reason (R) : The molality of a solution does not change with temperature as mass remains unaffected with temperature. In the light of the above statements, choose the correct answer from the options given below :
  1. A
    Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. B
    Both (A) and (R) are true but (R) is not the correct explanation of (A).
  3. C
    (A) is true but (R) is false.
  4. D
    (A) is false but (R) is true.
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